is the aforementioned procedure not working for you?
– Rob LodgeNov 21 '13 at 12:55

2

If your data was for example to 2 decimal places then you can multiply your data by 100 to move the decimal place and then use the INT tool to convert it into an integer grid. Then you'll be able to build raster table as described above.You just got to remember to divide any output by 100 to turn it back into the original values.
– HornbyddNov 8 '14 at 20:50